Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345074 | Process for the manufacture of a violet organic pigment, C.I. Pigment Violet 23 | Theobald Hufnagel | 1982-08-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345074 | Process for the manufacture of a violet organic pigment, C.I. Pigment Violet 23 | Theobald Hufnagel | 1982-08-17 |